package code.test.java.com.fsc.si;


import java.util.Scanner;

public class Homework1 {
    public static void main(String[] args) {
        Scanner sc=new Scanner(System.in);
        StringBuilder sb=new StringBuilder();
        String s=sc.nextLine();
        sb.append(s);
        int count=0;
        String vowels="aeiouAEIOU";
        for(int i=0; i<sb.length(); i++){
            if(vowels.indexOf(sb.charAt(i)) != -1) count++;
        }
        System.out.println(count);
    }


}
